EP 3662308 A4 20210421 - SIMULTANEOUS DISTRIBUTED MEASUREMENT MONITORING OVER MULTIPLE FIBERS

Title (en)

SIMULTANEOUS DISTRIBUTED MEASUREMENT MONITORING OVER MULTIPLE FIBERS

Title (de)

SIMULTANE VERTEILTE MESSUNGSÜBERWACHUNG ÜBER MEHRERE FASERN

Title (fr)

SURVEILLANCE DE MESURE DISTRIBUÉE SIMULTANÉE SUR DES FIBRES MULTIPLES

Publication

EP 3662308 A4 20210421 (EN)

Application

EP 18840545 A 20180729

Priority

EP 17290099 A 20170801
US 2018044271 W 20180729

Abstract (en)

[origin: WO2019027854A1] A distributed measurement system includes a first distributed optical sensing fiber deployed along a first desired measurement path and a second distributed optical sensing fiber deployed along a second desired measurement path. The system further includes an interrogation system coupled to the first distributed optical sensing fiber and to the second distributed optical sensing fiber. The system also includes a first distributed measuring instrument launch a first interrogating probe pulse set comprising a first pulse having a first frequency and a second pulse having a second frequency. The interrogation system is designed to direct the first pulse to the first distributed optical sensing fiber and the second pulse to the second distributed optical sensing fiber.

IPC 8 full level

G01V 8/24 (2006.01); G01K 11/32 (2021.01)

CPC (source: EP US)

G01D 5/268 (2013.01 - US); G01K 11/32 (2013.01 - EP); G01V 1/226 (2013.01 - EP US); G01V 2210/1429 (2013.01 - EP)

Citation (search report)

[XY] US 2015285683 A1 20151008 - OUELLETTE FRANÇOIS [CA]
[X] CN 106525091 A 20170322 - UNIV HUAZHONG SCIENCE TECH
[Y] US 2013301037 A1 20131114 - HANDEREK VINCENT ANDREI [GB]
[Y] US 2008123467 A1 20080529 - RONNEKLEIV ERLEND [NO], et al
[Y] WO 2016086310 A1 20160609 - HIFI ENGINEERING INC [CA]
[Y] US 2015323455 A1 20151112 - HANDEREK VINCENT [GB]

Citation (examination)

JP 2003098037 A 20030403 - MITSUBISHI HEAVY IND LTD
See also references of WO 2019027854A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2019027854 A1 20190207; EP 3662308 A1 20200610; EP 3662308 A4 20210421; US 11385368 B2 20220712; US 2020233107 A1 20200723

DOCDB simple family (application)

US 2018044271 W 20180729; EP 18840545 A 20180729; US 201816635901 A 20180729